| NIM | A1D022033 |
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| Namamhs | FIANTO AINUL YAQIN |
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| Judul Artikel | Identifikasi, Penilaian Kerusakan, dan Pola Penyebaran Layu Bakteri Tomat dan Terung di Kecamatan Sumbang |
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| Abstrak (Bhs. Indonesia) | Sektor hortikultura, khususnya komoditas tomat (Solanum lycopersicum) dan terung (Solanum melongena), memiliki nilai ekonomi tinggi namun produktivitasnya di Kecamatan Sumbang mengalami ketidakstabilan akibat serangan patogen tular tanah Ralstonia solanacearum. Penelitian ini bertujuan untuk mendiagnosis dan mengidentifikasi patogen R. solanacearum, menentukan tingkat kerusakan (insidensi dan nilai AUDPC), serta menganalisis pola sebaran spasial penyakit layu bakteri di lapangan. Metode penelitian meliputi eksplorasi sampel bergejala dari lahan pertanian di Kecamatan Sumbang, isolasi pada medium NA dan CPG-TTC, karakterisasi morfologi dan biokimia, serta uji patogenisitas dan uji hipersensitivitas pada tanaman cocor bebek (Crassula ovata) Penilaian kerusakan lapangan dievaluasi selama empat minggu secara kuantitatif yang dilengkapi dengan pemetaan sketsa petak lahan untuk menentukan pola sebaran spasial. Hasil penelitian berhasil mengidentifikasi dua isolat R. solanacearum (asal tomat dan terung) yang terbukti Gram-negatif, berbentuk batang, serta positif pada uji biokimia utama termasuk katalase, oksidase, KOH 3%, dan motilitas. Uji patogenisitas dan hipersensitivitas mengonfirmasi virulensi kedua isolat dengan memicu gejala layu mendadak serta nekrosis. Pengamatan lapangan menunjukkan insidensi penyakit tomat tertinggi terjadi di Desa Banteran (86,67%, AUDPC 1581,99)dengan pola sebaran merata, sedangkan insidensi penyakit terung tertinggi ditemukan di Desa Sumbang 2(71,67%, AUDPC 1190,46) dengan pola sebaran mengelompok. Karakteristik pola sebaran penyakit di Kecamatan Sumbang didominasi oleh tipe mengelompok (patch), diikuti oleh pola acak dan merata. Data ini menyediakan peta informasi karakteristik isolat patogen dan dinamika penyakit di lapangan sebagai rujukan strategi pengendalian yang tepat sasaran bagi petani setempat. |
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| Abtrak (Bhs. Inggris) | The horticulture sector, particularly tomato (Solanum lycopersicum) and eggplant (Solanum melongena) commodities, holds high economic value; however, its productivity in Sumbang District experiences instability due to the attack of the soil-borne pathogen Ralstonia solanacearum. This study aimed to diagnose and identify the R. solanacearum pathogen, determine the damage severity (incidence and AUDPC values), and analyze the spatial distribution patterns of bacterial wilt disease in the field. The research methods included the exploration of symptomatic samples from agricultural lands in Sumbang District, isolation on NA and CPG-TTC media, morphological and biochemical characterization, as well as pathogenicity and hypersensitivity testing on Kalanchoe pinnata. Field damage assessments were evaluated quantitatively over four weeks, accompanied by land plot sketch mapping to determine spatial distribution patterns. The results successfully identified two R. solanacearum isolates (from tomato and eggplant) that were proven to be Gram-negative, rod-shaped, and positive in key biochemical tests, including catalase, oxidase, 3% KOH, and motility. Pathogenicity and hypersensitivity tests confirmed the virulence of both isolates by inducing sudden wilting symptoms and necrosis. Field observations revealed that the highest tomato disease incidence occurred in Banteran Village (86.67%, AUDPC 1581.99) with a uniform distribution pattern, whereas the highest eggplant disease incidence was found in Sumbang 2 Village (71.67%, AUDPC 1190,46) with a clustered distribution pattern. The characteristics of the disease distribution patterns in Sumbang District were dominated by the clustered (patch) type, followed by random and uniform patterns. These data provide an informational map of pathogen isolate characteristics and field disease dynamics as a reference for targeted control strategies for local farmers.
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| Kata kunci | layu bakteri, pola sebaran, AUDPC, insidensi |
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| Pembimbing 1 | Prof. Dr. Ir. Heru Adi Djatmiko, M. P. |
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| Pembimbing 2 | Prof. Dr. Ir. Nur Prihatiningsih, M. S. |
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| Pembimbing 3 | |
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| Tahun | 2026 |
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| Jumlah Halaman | 14 |
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| Tgl. Entri | 2026-08-14 09:10:32.622067 |
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